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. 2017 Aug 31;43(4):402–412. doi: 10.1093/jpepsy/jsx113

Table I.

Presence of Nonpurging Compensatory Behaviors, Binge Eating, and Purging at Waves 1–9

Girls’ Wave 1 Wave 2 Wave 3 Wave 4 Wave 5 Wave 6 Wave 7 Wave 8 Wave 9
Behavior N (% of sample) N (% of sample) N (% of sample) N (% of sample) N (% of sample) N (% of sample) N (% of sample) N (% of sample) N (% of sample)
Binge eating 115 (12.3) 84 (9.0) 81 (8.7) 59 (6.3) 70 (7.5) 83 (8.9) 102 (10.9) 144 (15.4) 127 (13.6)
Purging 38 (4.1) 31 (3.3) 21 (2.2) 20 (2.1) 27 (2.9) 67 (7.1) 92 (9.8) 63 (6.7) 28 (3.0)
Compensatory Exercise 277 (29.5) 195 (20.8) 213 (22.8) 150 (16.0) 171 (18.3) 165 (17.6) 190 (20.3) 131 (14.0) 135 (14.4)
Fasting 118 (12.6) 99 (10.6) 95 (10.1) 78 (8.3) 82 (8.8) 135 (14.4) 145 (15.5) 84 (9.0) 72 (7.7)

Boys’ Wave 1 Wave 2 Wave 3 Wave 4 Wave 5 Wave 6 Wave 7 Wave 8 Wave 9
Behavior N (% of sample) N (% of sample) N (% of sample) N (% of sample) N (% of sample) N (% of sample) N (% of sample) N (% of sample) N (% of sample)

Binge eating 120 (12.4) 91 (9.4) 72 (7.4) 62 (6.4) 64 (6.6) 101 (10.4) 88 (9.1) 150 (15.4) 123 (12.7)
Purging 53 (5.5) 33 (3.4) 26 (2.7) 20 (2.1) 20 (2.1) 95 (9.8) 65 (6.7) 60 (6.2) 33 (3.4)
Compensatory Exercise 295 (30.3) 209 (21.5) 216 (22.2) 171 (17.6) 161 (16.6) 187 (19.3) 178 (18.3) 153 (15.8) 125 (12.9)
Fasting 129 (13.3) 84 (8.6) 89 (9.2) 76 (7.8) 80 (8.2) 150 (15.4) 114 (11.7) 83 (8.5) 76 (7.8)

Note. Top panel, N = 938. In each cell, N = the number of children reporting engagement in the behavior; % refers to the percentage of the overall girls’ sample represented by the number. All behaviors are dichotomized yielding a range of 0–1.

Bottom panel, N = 968. In each cell, N = the number of children reporting engagement in the behavior; % refers to the percentage of the overall boys’ sample represented by the number. All behaviors are dichotomized yielding a range of 0–1.

Differences in frequency of binge eating and compensatory behaviors between genders were tested using chi-square analyses. None of the comparisons was significantly different at the p ≥ .001 level, indicating that the genders did not differ on the frequency of binge eating or compensatory behaviors.